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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
02013000 DUNLAP CREEK NEAR COVINGTON, VA
LOCATION.--Latitude 37°48'10", Longitude 80°02'50", North American Datum of 1927,
                    Alleghany County, VA, Hydrologic Unit 02080201.
DRAINAGE AREA.--162 square miles.
PERIOD OF RECORD.--October 1928 to current year. Monthly discharge only for some periods, published in WSP 1303.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Occasional diurnal fluctuation caused by the draining or filling of small dam located 7.9 miles upstream from the station.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02013000 plot. DUNLAP CREEK NEAR COVINGTON, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 10/14/2008 is 13.25 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 28-Day Average Streamflow
            Flow values in cubic feet per second


                02013000     DUNLAP CREEK NEAR COVINGTON, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
19.2
28.0
43.3
92.3
177
279
409
500
953
 
79
February
21.5
46.2
70.8
137
250
373
511
605
1,000
 
79
March
22.3
91.4
127
204
317
456
630
735
1,140
 
79
April
53.0
88.8
124
187
293
464
652
776
1,160
 
79
May
39.1
59.6
79.6
126
204
322
463
534
1,080
 
79
June
22.9
32.5
38.5
56.7
107
220
350
448
697
 
79
July
13.0
18.3
21.6
28.6
40.1
70.9
143
207
791
 
79
August
12.2
15.5
17.7
21.9
31.9
50.1
100
188
551
 
79
September
10.2
13.9
15.2
17.6
24.1
42.7
91.4
142
580
 
79
October
11.2
14.4
15.6
18.7
26.9
52.8
127
172
552
 
78
November
13.8
17.7
19.6
24.2
44.5
118
241
330
704
 
79
December
14.6
21.4
23.8
39.0
103
195
325
450
748
 
79
 
       

The current 28-day running-average value for 10/14/2008 is 13.25 cubic feet per second.

---- Provisional Data Subject to Revision ----

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